feat: add smart "Workout Now" recommendation to workout picker

Auto-recommends the next workout in the 4-day cycle based on the
user's last completed session (one with logged sets). Redesigns
the /workouts page with highlighted recommendation card and
renames the back button to "Change Workout".

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/routes/workouts.py

@@ -14,6 +14,7 @@ from sqlmodel import Session, select
 from app.database import get_db_session
 from app.models.user import User
 from app.models.user_exercise_program import UserExerciseProgram
+from app.models.workout_day import WorkoutDay
 from app.services.exercise_service import ExerciseService
 from app.services.log_service import LogService
 from app.services.progression_service import ProgressionService
@@ -31,14 +32,40 @@ async def workout_days_list(
     session: Session = Depends(get_db_session),
     profile: User = Depends(require_active_profile),
 ):
-    """List all workout days as clickable cards."""
+    """List all workout days with a recommendation for what to do next."""
     exercise_service = ExerciseService(session)
     days = exercise_service.list_workout_days()
 
+    ws_service = WorkoutSessionService(session)
+    last_session = ws_service.get_last_completed_session(profile.id)
+
+    recommended_day_id = None
+    last_workout_name = None
+    last_workout_date = None
+
+    if last_session:
+        last_day = session.get(WorkoutDay, last_session.workout_day_id)
+        if last_day:
+            last_workout_name = last_day.name
+            last_workout_date = last_session.date
+            next_day_number = (last_day.day_number % 4) + 1
+            for d in days:
+                if d.day_number == next_day_number:
+                    recommended_day_id = d.id
+                    break
+    else:
+        for d in days:
+            if d.day_number == 1:
+                recommended_day_id = d.id
+                break
+
     templates = request.app.state.templates
     return templates.TemplateResponse("pages/workout_days.html", {
         "request": request,
         "days": days,
+        "recommended_day_id": recommended_day_id,
+        "last_workout_name": last_workout_name,
+        "last_workout_date": last_workout_date,
     })
 
 

app/services/workout_session_service.py

@@ -10,6 +10,7 @@ from typing import Optional
 import structlog
 from sqlmodel import Session, select
 
+from app.models.workout_log import WorkoutLog
 from app.models.workout_session import WorkoutSession
 
 logger = structlog.get_logger(__name__)
@@ -71,6 +72,17 @@ class WorkoutSessionService:
         )
         return ws
 
+    def get_last_completed_session(self, user_id: int) -> Optional[WorkoutSession]:
+        """Get the most recent session that has at least one logged set."""
+        statement = (
+            select(WorkoutSession)
+            .join(WorkoutLog, WorkoutLog.session_id == WorkoutSession.id)
+            .where(WorkoutSession.user_id == user_id)
+            .order_by(WorkoutSession.date.desc())
+            .limit(1)
+        )
+        return self._session.exec(statement).first()
+
     def list_sessions(
         self,
         user_id: int,

app/templates/pages/workout_day.html

@@ -27,5 +27,5 @@
     {% endfor %}
 </section>
 
-<a href="/workouts" role="button" class="outline">Back to All Days</a>
+<a href="/workouts" role="button" class="outline">Change Workout</a>
 {% endblock %}

app/templates/pages/workout_days.html

@@ -1,20 +1,36 @@
 {% extends "base.html" %}
 
-{% block title %}Workout Days — SneakySwole{% endblock %}
+{% block title %}Workout Now — SneakySwole{% endblock %}
 
 {% block content %}
-<h1>Workout Days</h1>
+<h1>Workout Now</h1>
+
+<p>
+    {% if last_workout_name %}
+    Last workout: <strong>{{ last_workout_name }}</strong> on {{ last_workout_date.strftime('%b %-d') }}
+    {% else %}
+    No workouts yet — start with Push!
+    {% endif %}
+</p>
 
 <div class="grid">
     {% for day in days %}
     <article>
         <header>
             <h3>Day {{ day.day_number }}: {{ day.name }}</h3>
+            {% if day.id == recommended_day_id %}
+            <mark>Recommended Next</mark>
+            {% endif %}
         </header>
         <p>{{ day.description }}</p>
         <footer>
+            {% if day.id == recommended_day_id %}
             <a href="/workouts/{{ day.name|lower|replace(' ', '-') }}"
-               role="button">View Workout</a>
+               role="button">Start Workout</a>
+            {% else %}
+            <a href="/workouts/{{ day.name|lower|replace(' ', '-') }}"
+               role="button" class="outline">Start Workout</a>
+            {% endif %}
         </footer>
     </article>
     {% endfor %}